15735252961 has 4 divisors (see below), whose sum is σ = 15742135552. Its totient is φ = 15728370372.

The previous prime is 15735252889. The next prime is 15735252983. The reversal of 15735252961 is 16925253751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15735252961 - 2⁷ = 15735252833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15735252061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3437865 + ... + 3442438.

It is an arithmetic number, because the mean of its divisors is an integer number (3935533888).

Almost surely, 2^15735252961 is an apocalyptic number.

It is an amenable number.

15735252961 is a deficient number, since it is larger than the sum of its proper divisors (6882591).

15735252961 is an equidigital number, since it uses as much as digits as its factorization.

15735252961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882590.

The product of its digits is 567000, while the sum is 46.

The spelling of 15735252961 in words is "fifteen billion, seven hundred thirty-five million, two hundred fifty-two thousand, nine hundred sixty-one".